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PBT assessment

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PBT assessment: overall result

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Name:
naphthenic acids, zinc salts, basic
Type of composition:
boundary composition of the substance
State / form:
liquid
Reference substance:
Composition 1
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Composition 1
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Composition 1
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Composition 1
Reference substance:
Composition 1
Name:
naphthenic acids, zinc salts, basic
Type of composition:
legal entity composition of the substance
State / form:
liquid
Reference substance:
Composition 1
Reference substance:
Composition 1
Reference substance:
Composition 1
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Composition 1
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Composition 1
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Composition 1
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Composition 1
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Composition 1
PBT status:
the substance is not PBT / vPvB
Justification:

A PBT and vPvB assessment shall be conducted as foreseen in Article 14 (3) (d) in conjunction with Annex I Section 4 according to the criteria as laid down in Annex XIII. According to Annex XIII of regulation (EC) 1907/2006 a PBT and vPvB assessment shall not apply to inorganic substances, but shall apply to organo-metal. Organo-metal compounds are defined as organic compounds that contain at least one metal or metalloid atom bound to a carbon atom. Because in metal carboxylates, the metal cation is only bound to the negatively charged oxygen in the carboxyl group via an ionic bond, naphthenic acids, zinc salts is considered as an inorganic substance, and thus a PBT and vPvB assessment is not required.

The organic moiety of this metal salt, i.e. naphthenic acid (CAS: 1338-24-5), does not have PBT properties because it does not meet the criteria for bioaccumulation (BCF <2000L/kg) and toxicity (no CMR or STOT RE classification and L(E)C50 values for marine or freshwater organisms are are ≥5.6 mg/L).